GB466584A - Improvements relating to telephone transmitters, particularly suitable for forming part of hand-microtelephones - Google Patents
Improvements relating to telephone transmitters, particularly suitable for forming part of hand-microtelephonesInfo
- Publication number
- GB466584A GB466584A GB33354/35A GB3335435A GB466584A GB 466584 A GB466584 A GB 466584A GB 33354/35 A GB33354/35 A GB 33354/35A GB 3335435 A GB3335435 A GB 3335435A GB 466584 A GB466584 A GB 466584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cover
- diaphragm
- class
- interior
- hand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
466,584. Microphones. SIEMENS BROS. & CO., Ltd., and SUTTON, G. W. Dec. 2,1935, No. 33354. [Class 40 (iv)] In a hand-microtelephone having a transmitter cover provided with apertures leading . to the interior, the cover is formed with a smooth surface over which the speaker's breath sweeps without being guided into the interior, and the apertures take the form of passages which have a sufficient slope backwards to prevent reflection of 'the breath into the interior. The cover 1 has inwardly and upwardly inclined slots 6 leading to a chamber 4 communicating with a further chamber in front of the diaphragm by an aperture 5 in a separator member 2. The transmitter inset is of the type comprising a diaphragm having a central conical portion connected by a flat annular portion to a further portion having the form of a frustum of a cone, as described in Specification 308,630, [Class 40 (iv)], and the separator 2 is formed with an upstanding portion 3 to engage the flat annular portion of the diaphragm. The cover 1 may be fixed to the inset container in the manner described in Specification 328,926, [Class 40 (iv)].
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33354/35A GB466584A (en) | 1935-12-02 | 1935-12-02 | Improvements relating to telephone transmitters, particularly suitable for forming part of hand-microtelephones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB33354/35A GB466584A (en) | 1935-12-02 | 1935-12-02 | Improvements relating to telephone transmitters, particularly suitable for forming part of hand-microtelephones |
Publications (1)
Publication Number | Publication Date |
---|---|
GB466584A true GB466584A (en) | 1937-05-31 |
Family
ID=10351837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33354/35A Expired GB466584A (en) | 1935-12-02 | 1935-12-02 | Improvements relating to telephone transmitters, particularly suitable for forming part of hand-microtelephones |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB466584A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2471018A1 (en) * | 1979-11-29 | 1981-06-12 | Akg Akustische Kino Geraete | ANTI-POP MICROPHONE BONNETTE |
-
1935
- 1935-12-02 GB GB33354/35A patent/GB466584A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2471018A1 (en) * | 1979-11-29 | 1981-06-12 | Akg Akustische Kino Geraete | ANTI-POP MICROPHONE BONNETTE |
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